longtail tuna

fish

Also known as: Thunnus tonggol

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Last updated

June 30, 2026

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The longtail tuna, scientifically known as Thunnus tonggol, is one of seven species within the tuna genus Thunnus. These oceanic fish are related to mackerels and are commercially valuable as food.1

Tunas are characterized by their elongated, streamlined bodies, tapering to a slender tail base, and typically have a forked or crescent-shaped tail. Their coloration is usually dark on top and silvery below, often with an iridescent sheen. A distinctive feature is their ability to maintain a body temperature above that of the surrounding water, thanks to a specialized vascular system.1

The longtail tuna has a limited distribution, primarily found in the Indo-Pacific region. They feed on fish, squid, shellfish, and planktonic organisms.1

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tuna
atlanticus), and longtail tuna (T. tonggol). These different species range from moderate to very large in size. The giant of the group is the northern bluefin tuna, which grows to a maximum length and weight of about 4.3 metres (14 feet) and 800 kg (1,800 pounds). The…
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atlanticus), and longtail tuna (T. tonggol). These different species range from moderate to very large in size. The giant of the group is the northern bluefin tuna, which grows to a maximum length and weight of about 4.3 metres (14 feet) and 800 kg (1,800 pounds). The…
Read More